chapter 6;bivariate scatterplot Flashcards
scatterplot association
linear form- when the points follow a strait line
non-linear form- when the points follow a curved line
direction of an association
line is either up=positive, down==negative
strength of association
strong, moderate or weak
line of best fit
straight line that approximates a linear association between points
interpolation
predicting values within the dataset range
extrapolation
predicting values outside the dataset range
statistical investigation
collecting data, organising data, summarising and displaying data, analysing data
issues>with statistical investigations
bias, accuracy, copyright, privacy
causation
indicates more than one event in a result of the occurrence of another event or variable